Anas Abbas, Safdar Tanweer, Syed Sibtain Khalid and Naseem Rao 05 12 We have seen a massive growth in PDF file usage A PDF file is something which is used by approx everyone It is a necessary thing for all and it became a must have thing Everyone must have used PDF file at some point in their life It is used by professors students working professional common people Professors use it to make examination paper for students guidelines for students any notice for students etc students are use it for making answer sheet organizing documents making assignment etc working professional use PDF for making their workrelated documents and for some other reasons Common people use it for organizing govt ids organizing home registration paper etc You can organize documents thorough it very easily So to make PDF it is essential that you have a PDF converter in your device otherwise how can you make PDF Here this app helps you Which is an android app Which helps you to make PDF very easily You can do editing in it also very easily Which make it a better app This article shows you why we choose android OS over other and why we choose Waterfall model Hope this helps the researchers Copyright (c) World Journal of Pharmaceutical Seiences. All rights reserved 2026